Meson mass at large baryon chemical potential in dense QCD

被引：61

作者：

Hong, DK ^{[1
]}

Lee, T

Min, DP

机构：

[1] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

[2] Seoul Natl Univ, Ctr Theoret Phys, Seoul 151742, South Korea

[3] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

来源：

PHYSICS LETTERS B | 2000年 / 477卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(00)00188-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We reexamine the quark mass induced term in chiral Lagrangian in color-flavor locking phase in dense QCD, and show that the meson mass term is determined by three independent invariants under chiral-axial symmetry, and a meson mass is given in terms of the quark mass, gap, and the chemical potential by m(pi)(2) similar to m(q)(2)Delta<(Delta)over bar>/mu(2)ln(mu(2)/Delta(2)). Thus mesons become massless as mu --> infinity. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：137 / 140

页数：4

共 14 条

[1] Color-flavor locking and chiral symmetry breaking in high density QCD [J].